Description

Fmoc-D-Tyr(4-Et)-OH is a protected, non-natural amino acid derivative essential for solid-phase peptide synthesis (SPPS). This compound matters for its role in constructing complex peptides with enhanced stability and specific biological activity, particularly in research and therapeutic development. It is primarily needed by pharmaceutical R&D teams, biotechnology companies, and academic laboratories focused on developing novel peptide-based drugs, diagnostics, and biochemical tools.

Application

• Key building block in solid-phase peptide synthesis (SPPS) for research and pharmaceutical development.
• Incorporation of D-tyrosine derivatives to enhance peptide metabolic stability and resistance to enzymatic degradation.
• Synthesis of peptide libraries for high-throughput screening in drug discovery programs.
• Production of specialized peptides for structure-activity relationship (SAR) studies.
• Manufacture of fluorescently labeled or modified peptides for diagnostic and imaging applications.
• Research into GPCR-targeting peptides and other bioactive compounds.

Basic Information

Product Name	Fmoc-D-Tyr(4-Et)-OH
CAS No.	162502-65-0
Molecular Formula	C26H25NO5
Molecular Weight	431.48 g/mol
Synonyms	Fmoc-D-Tyr(OEt)-OH; N-[(9H-Fluoren-9-ylmethoxy)carbonyl]-O-ethyl-D-tyrosine; Fmoc-D-O-ethyltyrosine; (R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(4-ethoxyphenyl)propanoic acid; Fmoc-D-4-Ethoxy-phenylalanine; Fmoc-D-Tyr(Et)-OH; Fmoc-D-4-EtO-Phe-OH
EINECS	Contact for details

Quality Control

Our Fmoc-D-Tyr(4-Et)-OH is produced under strict quality management systems to ensure high purity and batch-to-batch consistency, suitable for sensitive pharmaceutical research. Each lot undergoes rigorous analytical testing, including HPLC for purity and chiral analysis to confirm enantiomeric integrity. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 15-25°C. This material is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept sealed in a desiccated environment and opened under controlled conditions to minimize exposure to atmospheric moisture and light.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (HPLC)	Conforms
Identification (IR)	Conforms
Purity (HPLC)	≥ 98.0%
Chiral Purity (HPLC)	≥ 99.0%
Water Content (KF)	≤ 1.0%
Heavy Metals	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.